![]() ![]() “The brain is a giant neural circuit,” says Geoffrey Meissner, a Howard Hughes researcher and lead author of the new mapping study in eLife. The more detailed a brain connection map (called a connectome) is, the better it helps scientists understand how nervous systems work. After years of work on their FlyLight initiative, researchers at the Howard Hughes Medical Institute’s Janelia Research Campus in Ashburn, Va., have compiled photographs of more than 74,000 fruit fly brains-detailed down to the individual neuron-from flies in over 5,000 genetically modified lineages.* This image shows one such fly brain, with brain lobes and individual activated neurons clearly visible. These insects' simple brains are invaluable to neuroscientists studying information processing and task management, and a new, unprecedentedly detailed map of fruit fly brain connections now makes that easier. Everybody wants to get inside a fruit fly's head. ![]()
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